Warren W. Thio, MD
Anesthesiology Physician · Hermosa Beach, CA
Warren W. Thio, MD is an anesthesiology physician with a practice address in Hermosa Beach, California, and NPI 1760463780, issued on Nov 8, 2005. Check the license (California A76462, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Warren W. Thio
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A76462 CA
Self-reported in NPPES; status is on the state search - Practice location
- 941 24TH St, Hermosa Beach, CA 90254
- Phone
- (202) 531-3011
- Enumerated
- Nov 8, 2005
- Record last updated
- Nov 5, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20121107000186); accepts Medicare assignment
- Medical or professional school
- Uniformed Services Uhs Fe Hebert School Of Med, 1999
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Verify Warren W. Thio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A76462Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 65 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Bayside Anesthesia Medical GroupSanta Monica, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Warren W. Thio among 7,571 anesthesiology physician records in California
Warren W. Thio, MD is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1999 · median 2006 among the 4,868 with a school on file
- Record last updated2013 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in California
There are 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Hermosa Beach → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Noel Chun, M.D.Hermosa Beach, CA 902541982638839
- Irwin Cooper, M.D.Hermosa Beach, CA 902541578704029
- Zarintaj Huda, M.D.Huntington Park, CA 902551174532444
- Nassim Moradi, M.DHuntington Park, CA 902551184846537
- Benjamin SchoepkeHawthorne, CA 902501215357645
- Otto Stallworth, M.D.Hawthorne, CA 902501639133747
- Aruna Patil, M.D.Gardena, CA 902481598716011
- Won Han, MDGardena, CA 902471124041264
Common questions
What is Warren W. Thio, MD's NPI number?
Warren W. Thio, MD's National Provider Identifier (NPI) is 1760463780, issued on Nov 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Warren W. Thio, MD located?
The NPPES record lists a practice address at 941 24TH St, Hermosa Beach, CA, 90254. Phone: (202) 531-3011. Providers update this record themselves, so call before visiting.
How can I verify Warren W. Thio, MD's license?
NPPES lists California license number A76462, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Warren W. Thio, MD's MIPS final score?
The 2023 MIPS final score is 65 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.